Browsing Faculty of Natural Science by Author "Weitz, Frans"
Now showing items 1-4 of 4
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An evaluation of the biopesticidal characteristics of Helichrysum marifolium and Helichrysum patulum and their effects on animal metabolism
Speelman, Abigail (University of the Western Cape, 2002)There ate a number of pesticides that are suspected to be endocrine disrupters' Many of these pesticides are man-made. Endocrine disrupters are chemicals that can lead to an increase in birth defects, sexual abnormalities, ... -
A global revision of the nongeniculate coralling algal genere Porolithon Foslie (defunct) and Hydrolithon Foslie (Corallinales, Rhodophyta)
Maneveldt, Gavin W. (University of the Western Cape, 2005)The purpose of this thesis was to provide a revision and characterization of the species of nongeniculate coralline algae previously ascribed to the now defunct genus Porolithon; to provide a modern account of selected ... -
Specias delimitation and assessment of genetic variability in Carpobrotus (Alzoaceae): evidence from amplified fragment length polymorphisms
Khunou, Angeline (University of the Western Cape, 2004)Species of Carpobrotus (Aizoaceae: Ruschioideae) are widely spread throughout South Africa and are commonly used for their medicinal properties. The genus consists of 13 species of which seven occur in South Africa, five ... -
Species-level phylogenetic reconstruction of the African cycad genus Encephalartos (Zamiaceae)
Mabunda, Makhegu Amelia (University of the Western Cape, 2007)This thesis explores species-level phylogenetic relationships of the African cycad genus Encephalartos, which is one of the eleven genera of cycads. The genus is confined to Africa and comprises approximately 65 species, ...